In the near future a corporation named The United States Department of Housing and Urban Development (HUD) have invented a computer system that enables transit to the digital dimension. It was tested in a trial apartment complex, but the experiment malfunctioned and all the residents have disappeared.
You are sent into the quarantined area to gather the experimental computers. To be able to do this you have to go to the digital dimension. Be careful! The former residents still haunt the place like virtual ghosts. Don’t get caught, or you will be stuck in the digital dimension forever.